Yu Watanabe
3b1b2d4e3d
Fixes a bug introduced by 1ddb263d21.
Note, this requires the previous two commits, and cannot backport without them.
Note, before the previous commit, the use-after-free could be triggered
only by Rename() DBus method, and could not by RenameImage(), as we did not
cache Image object when RenameImage() method is called. And machinectl
always uses RenameImage(). Hence, the issue could be triggered only when
Rename() DBus method is explicitly called by e.g. busctl.
With the previous commit, the Image object passed to the function is
always cached. Hence, the issue could be triggered even with machinectl
command, and this fix is important.
System and Service Manager
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